And dehumidifying



June 7, 1932. MOORE 1,861,709

VENTILATING, REFRIGERATING, AND DEHUMIDIFYING APPLIANCE Filed Aug. 9, 1930 s Sheets-Sheet 1 gnmn roc June 7, 1932. MOORE 1,861,709

VENTILATING, REFRIGERATING, AND DEHUMIDIFYING APPLIANCE Filed Aug. 9, 1930 3 Sheets-Sheet. 2

gwumrroz June 7, 1932. MOORE 1,861,709

VENTILATING, REFRIGE RATING, AND DEHUMIDIFYING APPLIANCE Filed Aug. 9, 1930 3 Sheets-Sheet 3 gnue n (oz Charlsfi-Moorc Patented June 7, 1932 UNITED STATES OFFICE CHARLES A. MOORE, OF EDINA, MINNESOTA Application filed August 9, 1930. fierial No. 474,284.

This invention relates to ventilating, refrigerating and dehumidifying appliances of the general type disclosed in Patent No. 1,777,573, granted to me October 7,1930, and

b in my copending application Ser. N 0. 474,285,

filed August 9, 1930.

An ob ect of the present invention is to secure, in addition to the benefits secured in the appliances of the above mentioned patant and application, a more effective refrigerated recirculation of the air within the enclosure and to obtain greater, flexibility in operation.

More specifically, it is an object of my present invention to provide an air conditioning appliance for establishingand maintaining a refrigerated recirculatlon of air within a chamber, in which appliance the relatively warm air from the upper portion of the chamber, as well as the colder air from the lower portion of the chamber, is received therein and eifectively cooled and thereafter passed on to the circulating flow of air 1n the chamber proper at its elevation of beginning, either at the upper portlon of the chamber or at the lower portion thereof, as the case may be.

The various further objects will more fully appear from the detailed description and the novel features will be particularly pointed out in the claims.

In the drawin s, 1 is aside 'elevational view of an app iance embodyin my invention installed in a chamber to e refrigerated and ventilated; Fig. 2 is a vertical sectional view, taken as on the line 2-2 of Fig. 3; Fig. 3 is a plan view, and Fig. 4 is a vertical sectional view in. detail taken as on the line 44 of Fig. 3. 4

Referring to the drawings, it will be observed that I have illustrated fragmentaril a building structure forming a chamber X ture I have illustrated an appliance embodying my present invention, the same including three upright conduits. Portions of these conduits being concentrically disposed, they may be conveniently referred to as inner, intermediate and outer conduits.

drain 9. At thev lower end of inclined extension said structure including a floor 5, side walls 6 and ceiling 7. Within this building struc- The outer conduit includes a refrigerant pipe 10 coiled turn u on turn, the turns of said pipe being slightly spaced apart to per mit of the reception between them of bolts 13, which clamp the coiled pipe 10 between paired straps 12 and upright standards 11, the latter having their footin upona base ring 8 of angle iron dispose over a floor the pipe coil is a skirt 38 which is secured to the stand- '60 ards 11 by bolts 38. The upper margin of this skirt 38 encircles the lower turn of the pipe 10, the end of which projects through the skirt and connects with avalved pipe fitting 10. The lower edge of the skirt 38 terminates considerably short of the floor 5 leavin a way opening into the outer conduit from t e lower portion of the chamber. Capping the upper end of the pipe coil is'a hood 14 formed with a depending flange 15 which is clamped between the outer face of the upper turn of the coiled pipe 10 and the inner faces of the inturned flanges of the standards 11, the end of the upper turn of the pipe 10 projecting through said skirt and being connected with a valved pipe fitting 10 The hood 14 is of frusto-conical form, "and issuing therefrom is an elbow 26 connecting with a vertical branch pipe 27, which terminates at its upper end near the ceiling 7 of the chamber and which is fitted at that end'with a damper 39. Issuing outwardly from said vertical branch pipe 27 is a horizontal branch pi e 28 flared at its outer end as at 29, said ared end 29 supporting a thimble 29. Within this thimble is mounted a fan 30 driven through a belt 30 from a motor 31 secured to the lower side of said thimble.

The intermediate conduit consists of an upright pipe 21 fitted at its upper end with an 20. Th1s extension connects with an elbow 19 issuing from the hood 14 in diametrically opposed relation with respect to the elbow 26 of the outer conduit. Connecting with said elbow 19 is a vertical branch pipe 18 which opens at its upper end near the ceiling 7. of the chamber and which is fitted at that end thereof with a dam er 40. Extending outwardly from the vertical branch pipe 18 is a horizontal branchpipe 16, the same passing through a side wall 6 of the building structure an being fitted with a damper 34.

l The inner conduit consists of a vertical pipe 36, the upper portion of which passes through the upper part of 'termediate conduit the hood 14, the upper end of said pipe 36 terminating at an elevation near the ceiling 7 of the chamber X. and being fitted at that end with a damper 46. The lower end of ipe 36 connects with a horizontally disposed ranch 37 at a point between the ends thereof,

iametrically opposed notches 38 being cut in the skirt 38 to receive the upper portion of said branch pipe 37. One end of this branch pipe 37 is extended through a wall 6 of the building structure and is fitted with a damper 42, the other end of said branch pipe 37 being covered with a removable cap 41.

Between the inner walls of the coil formed by the pi e 10 and of the hood 1 4, on the one hand an the outer walls of the pipe 21 and extension 20, on the other hand, are a pair of partition plates 24 and 25 which are arranged in a common plane diametrically .of the concentric conduits. These portltion plates form within the outer conduit two upright passageways 22 and 23, the passageway 23 being in communication at its upper end throu h elbow 26 and pipe branches 27 and 28. Said passageway 23 also communicates with the upper portion of the chamber through an elbow 44 issuing from the hood 14 V and connecting with an upright branch pipe with an upright branch pi 43 terminating at its upper end near the ceiling 7 of the chamber and fitted at such end with a damper 45. The other passa eway 22 communicates at its upper end with t e upper portion of the chamber X through an elbow- 33 issuing from the hood 14 and connecting e 32 terminating at its u per end near the cei ing 7 of the chamber an fitted at such end with adamper 35. The lower end of the pipe 21 and the lower turn of the coiled pipe 10 occupy positions at substantially the same level. The pipe connections 10 and 10", respectively connected with the lower and u per ends of the coiled pipe 10, are connecte respectively, with the feed and return leads, not shown, communicating with a source of refrigerant supply, such as brine or the like.

With the refrigerant passing through the coiled pipe 10, the turns thereof become frosted to ether, rendering the wall of the outer con uit-solid between the skirt 38 and hood 14. From this ap liance, air may be blown by the fan 30 into t e upper portion of the chamber, such air consisting of air drawn upwardlylthrough the outer conduit from the floor of t ing of the chamber and/or air from the outer the extension 20 of the inand through the peak of.

e chamber and/or air from the ceil v of the partition plates 24, 25 and the assageways 22 and 23 formed thereby in t e outer conduit, the air thatis blown into the upper ortion of the chamber by thefan 30 may urther consist of air drawn downwardly from the ceilingof the chamber through passageway 22, t ence upwardly to the fan through passageway23. In this connection, it is to be noted that a part of the air being recirculated passes from the ceiling of the chamber into the applianc and from the appliance back into-the upper portion of the chamber after having twice traveled the length of the refrigerating coil, first downwardly in passageway 22 and thence upwardly in passageway 23.

Without thefan 30 in operation, fresh air from the outside may avltate intothe lower portion of the chem er through the intermediate conduit. And air recirculating, may

descend from the upper portion of the chamber to the lower portion thereof through the passageway 22 by way of the branch pipe conduit by way of the branch pipe 37. with the upper portion of the chamber X 1 In any case, whether the fan 1s in operation or not, air may be exhausted to the outside through the inner conduit.

Among the particularly advantageous features residing in the present structure is the feature of air recirculation, through the appliance, from the upper portion of the chamer and back to such portion thereof, and the further feature of conducting varying quantities of air downwardly through the appliance b way of the several valved avenues for 'Sl1C travel of air from the upper to the lower, portion of the chamber.

In passing through the ap liance, and particularly the outer conduit t ereof, the air is dehumidified to a greater or lesser extent and thus conditioned in such respect before entering upon its circulatory passage through the chamber proper.

Chan es in the specific form of my invention, as erein disclosed, ma be made within the scope of what is claime without departlower portion of said chamber, partition.

second conduit being in communication at its upper end with the outer atmosphere, a third upright conduit within said first conduit opening at its upper end into the upper portion of the chamber and at the lower end thereof into the outer atmosphere, and means for impelling air upwardly through one of the passageways into the upper portion of the chamber, the action of such air impelling means serving to draw air into the said passageway from the lower end of conduit and similarly from the other passageway.

2. The combination with a structure forming a chamber, of an appliance therein comprising an upright refrigerated conduit, a second upright conduit within the first conduit, partition means between said conduits forming therebetween two upright passageways, the same being in valved communication at their upper ends with the upper portion of the chamber, the second conduit at its upper end being in valved communication, selectively, with the outer atmosphere and with the upper portion of the chamber, said second conduit and said passageways at the lower ends thereof being open to the interior of the chamber at its lower portion, and a third upright conduit within said first conduit, the same, at its lower end, being in valved communication, selectively, with the outer atmosphere and with the lower portion of the chamber.

3. The combination with a structure forming a chamber, of an appliance therein comprising an upright refrigerated conduit, a

second upright conduit within the first con-- duit, partition means between said conduits forming therebetweentwo upright passage ways communicating at their upper ends with the upper portion of the chamber, the second conduit at its upper end being in valved communication, selectively, with the outer atmosphere and with the upper portion of the chamber, means for impelling air upwardly through one of the passageways into the upper portion of the chamber, the action of such impelling means serving to draw air into the said passageway from the lower end of said second conduit and similarly from the other passageway, and means for the egress of air from the room.

4. In combination with a structure forming a chamber, an appliance therein comprising an upright refrigerated conduit commumcating at the lower end thereof with the means within said conduit forming therein :two upright passageways communicating at their upper ends with the upper portion of the chamber, means for impelling air upwardly through one of the passageways into the upper portion of the chamber, the action of such impelling means serving to draw air into the sald passageway from the lower porsaid second tion of the chamber other passageway.

5. In combination with a structure forming a chamber, an appliance therein comprising an upright refrigerated conduit, partition means traversing the interior of said conduit and forming therein two upright passageways communicating at their upper ends wlth the upper portion of the chamber, means for impelling air upwardly through one of the passageways and forcing it horizontally along the upper portion of the chamber, the action of. such impelling means serving to draw air into the said passageway from the lower end of the other passageway.

6. In combination with a structure forming a chamber, an appliance therein comprising an upright refrigerated conduit, partition means within said conduit forming therein two upright'passageways communiand similarly from the cating at their upper ,ends with-the upper portion of the chamber, means for impelling air upwardly through one of said passageways into the upper portion of the chamber, the action of such impelling means serving to draw air into the said passageway from the lower end of the other passageway.

7. The combination with a structure forming a chamber, of an appliance therein comprlsing an upright refrigerated conduit communicating at its lower portion with the lower portion of said chamber, a second upright conduit within the first conduit, partition means between said conduits forming therebetween two upright passageways communicating at their upper ends with the upper portion of the chamber, the second conduit being in communication at its upper end with the outer atmosphere, said second conduit and said partition means terminating at their lower extremeties short of the lower end of said first conduit, means for impelling air upwardly through one of the passageways into the upper portion of the chamber, the action of such impelling means serving to draw air into the said passageway from the lower end of said second conduit and similarly from the other passageway and from the lower portion for the egress of air from the chamber.

- In testimony whereof I aflix my signature.

CHARLES A. MOORE. 

